"The U.S. Environmental Protection Agency said that ethanol and other renewable fuels must account for 8.25 percent of total gasoline and diesel sales in 2010 to meet Congress' mandate that nearly 13 billion gallons of renewable fuels be produced this year."

"President Obama moved on Wednesday to bolster the nation’s production of corn-based ethanol and other alternative liquid fuels and ordered the rapid development of technology to capture carbon dioxide emissions from the burning of coal."

"The Tres Amigas transmission project in New Mexico, which seeks to link the nation's three power grids to share wind power across the United States, has attracted both eager allies and some determined foes."

"Weighing the future of a controversial wind farm project, Secretary of the Interior Ken Salazar toured Nantucket Sound on a Coast Guard cutter Tuesday, surveying the 24-square-mile area where the proposed project would loom."

"President Barack Obama on Wednesday will outline a government strategy to boost development of U.S. biofuels and address their environmental challenges, an administration official said."

"Opponents of planned wood-burning power plants in southern Indiana are watching closely as state officials finish work on an air permit that would dictate what types of wood products the first of the plants can burn."

"The Environment Report explores the role that coal plays in our lives and in the lives of those who depend on coal mining for a living."

"A new US assessment of Venezuela's oil reserves could give the country double the supplies of Saudi Arabia."

Many U.S. homes could be made far less expensive to heat and cool -- reducing greenhouse emissions in the process.

"A sister company to Toyota Motor Corp secured a lithium supply deal in Argentina on Wednesday that could help the world's largest automaker keep its lead in gasoline-electric hybrid cars."

"Wind could replace coal and natural gas for 20 to 30 percent of the electricity used in the eastern two-thirds of the United States by 2024, according to a study released Wednesday by the Energy Department."

"Forget blackjack tables or roulette wheels. Tribal lands could generate wealth through solar, wind, and geothermal energy."

"Federal regulators said on Thursday that they would impose hard limits on energy futures contracts held by commodity traders, part of a move to curb excessive speculation and possibly avoid a repeat of the 2008 run-up in oil prices."

The New York Times' Green Inc. and Wheels blogs round up news from the Detroit Auto Show. The news is all about electric vehicles. Several foreign makers may beat U.S. firms to market or undercut them on price.

"It sounded like a good idea: Provide a little government money to convert wood shavings and plant waste into renewable energy. But as laudable as that goal sounds, it could end up causing more economic damage than good."